Sexy man! Singer Trey Songz strips down to his underwear (Photos)

Trey Songz stripped down to his underwear on

Instagram on Monday and showed the ladies what
he's working with. He shared the sexy pics taken
in the bathroom and wrote "Thanks Calvin Klein
for the delivery #MyCalvins". After he posted this,
girls went crazy and it became a trending topic
on Twitter and instagram. But it later turned out
to be a subtle ad for Calvin Klein. The clothing
giant enlisted him and a few other celebs to show
off their underwear on their social media pages.